In May 2007, at the Cannes festival, the directors Alfonso Cuarón, Alejandro González Iñárritu and Guillermo del Toro announced a joint project, Cha Cha Chá, to make five films for 100 million dollars. Universal Pictures and Focus Features International would finance the films and handle their distribution and international sales.
The film site Espinof called the three directors Los Tres Amigos, the three friends.